Attack accuracy, ATA; hit percentages

[Mirinee]

Aha. So 1hit% = 1ATA. Thanks. Now I know how ATA stat works. The ATA stat displayed to you is:
Character's base ATA + Mag ATA boost + Weapon ATA boost + Weapon hit%
(Where 1 DEX = 0.5 ATA from the Mag and 1hit% = 1ATA)

That cleared up the doubt about Hit%.
True attack accuracy(not the stat) is a function of ATA (which is defined above) and enemy's evade stat. I'm not going to ask for the formula any more, as it doesn't seem to be easy to obtain without hacking into the game itself. Nobody knows for sure and that's what makes it fun .